/*********************************************************************************
 *                                                                               *
 * The MIT License (MIT)                                                         *
 *                                                                               *
 * Copyright (c) 2015-2022 aoju.org OSHI and other contributors.                 *
 *                                                                               *
 * Permission is hereby granted, free of charge, to any person obtaining a copy  *
 * of this software and associated documentation files (the "Software"), to deal *
 * in the Software without restriction, including without limitation the rights  *
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell     *
 * copies of the Software, and to permit persons to whom the Software is         *
 * furnished to do so, subject to the following conditions:                      *
 *                                                                               *
 * The above copyright notice and this permission notice shall be included in    *
 * all copies or substantial portions of the Software.                           *
 *                                                                               *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR    *
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 * THE SOFTWARE.                                                                 *
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 ********************************************************************************/
package org.aoju.bus.health.linux.drivers;

import org.aoju.bus.core.annotation.ThreadSafe;
import org.aoju.bus.health.Builder;
import org.aoju.bus.health.Executor;

/**
 * Utility to read info from {@code lshw}
 *
 * @author Kimi Liu
 * @version 6.5.0
 * @since Java 17+
 */
@ThreadSafe
public final class Lshw {

    /**
     * Query the model from lshw
     *
     * @return The model if available, null otherwise
     */
    public static String queryModel() {
        String modelMarker = "product:";
        for (String checkLine : Executor.runNative("lshw -C system")) {
            if (checkLine.contains(modelMarker)) {
                return checkLine.split(modelMarker)[1].trim();
            }
        }
        return null;
    }

    /**
     * Query the serial number from lshw
     *
     * @return The serial number if available, null otherwise
     */
    public static String querySerialNumber() {
        String serialMarker = "serial:";
        for (String checkLine : Executor.runNative("lshw -C system")) {
            if (checkLine.contains(serialMarker)) {
                return checkLine.split(serialMarker)[1].trim();
            }
        }
        return null;
    }

    /**
     * Query the UUID from lshw
     *
     * @return The UUID if available, null otherwise
     */
    public static String queryUUID() {
        String uuidMarker = "uuid:";
        for (String checkLine : Executor.runNative("lshw -C system")) {
            if (checkLine.contains(uuidMarker)) {
                return checkLine.split(uuidMarker)[1].trim();
            }
        }
        return null;
    }

    /**
     * Query the CPU capacity (max frequency) from lshw
     *
     * @return The CPU capacity (max frequency) if available, -1 otherwise
     */
    public static long queryCpuCapacity() {
        String capacityMarker = "capacity:";
        for (String checkLine : Executor.runNative("lshw -class processor")) {
            if (checkLine.contains(capacityMarker)) {
                return Builder.parseHertz(checkLine.split(capacityMarker)[1].trim());
            }
        }
        return -1L;
    }

}
